Roller-bearing for printing-presses.



H. O. TWOOD. ROLLER BEARING FOR PRINTING PRESSES. APrLIoATIoN Hum nu ze,1909.

Ptented 001.1111910.

@PPE

HARRY O. ATWOOD, 0F WEST PHILADELPHIA, PENNSYLVANIA.

ROLLER-BEARING FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented Oct. 18, 1910.

Application filed May 26, 1909. Serial N0. 498,436.

To all 'whom it may concern:

Be it known that I, HARRY O. A'rwoon, a citizen of the United States,residing at West Philadelphia, in the county of Philadelphia and Stateof Pennsylvania, have invented a new and useful Roller-Bearing forPrinting- Presses, of which the following is a specification.

This invention relates to printing presses and more particularly toadjustable bearings for the gudgeons of the inking roller.

Heretofore considerable diiiiculty has been experienced in maintainingthe inking roller in such a position as to bear with the proper degreeof pressure upon the type, this being due to the fact that the rollersoften shrink subsequent to their initial adjustment.

The object of the present invention is to provide means whereby a minuteadjustment of the gudgeon can be obtained, said means being simple inconstruction and easy to operate.

Vith these and other objects in view the invention consists in certainnovel details of construction and combinations of parts hereinafter morefully described and pointed out in the claims.

In the accompanying drawings, the preferred form of the invention hasbeen shown.

In said ldrawings, Figure 1 is a view partly in elevation and partly insection and showing the roller mounted within the said bearings. Fig. 2is a section on the line A-B of Fig. 1. Fig. 3 is a perspective view ofa supporting bracket constituting the body portion of the bearing. Fig.4 is a perspective view of the cylindrical bearing block.

Referring to the figures by characters of reference 1 designates abracket having a ring-like extension 2 projecting perpendicularly fromone end thereof, there being a box or standard 3 projecting upwardlyfrom the ring-like extension and constituting a bearing for a worm 4having a head 5 at one end by means of which it may be convenientlyrotated. A cylindrical bearing block 6 is mounted to rotate within theextension 2 and provided adjacent one end with a worm gear 7 preferablyintegral therewith and which is constantly in mesh with the worm 4. Aflange 6 is preferably formed upon that end of the block 6 which isfarthest removed from the gear 7. The block 6 extends beyond both facesof the extension 2 and has a bore 8 arranged longitudinally therein buteccentric, this bore being designed to receive the gudgeon 9 of a roll10.

A plate 11 is keyed or otherwise secured to the gudgeon 9 and has aradial slot 12 therein within which a screw 13 or the like is slidablymounted, this screw being in engagement with a roller 14 journaled onthe projecting end of the block 6. This roller 14 is designed to travelalong the track C and motion will be transmitted from the roller throughthe screw 13 to the plate 11 and from this plate to the gudgeon of theroll 10. The block 6 is of course held against rotation under ordinaryconditions by the worm 4.

Should the roll 10 shrink to an objectionable extent it would becomedesirable to shift it toward the type. Tith the present structuie thiscan be eifected simply by turning the worm 4, so as to cause the block 6to partly rotate. Inasmuch as the gudgeon 9 is eccentrically mounted inthis block it will be apparent that this rotation of the block in onedirection will move the gudgeon 9 and the roll 10 downwardly a desireddistance. The plates 11 will also be shifted to a slight extent withrelation to the roller 14. The center of the roller 14 however remainsfixed irrespective of any adjustment of the block 6. After thisadjustment of the parts has been effected the machine may be set inmotion and the roller 14 will travel along the track and motion will betransmitted therefrom, as before, through the screw 13 and the plate 1l.In view of the fact that the gudgeon is eccentrically mounted, the plate11 will constantly shift with relation to the roller 14 during therotation of said roller, this being permitted in view of the fact thatsaid plate is movably mounted on the screw 13.

By means of the mechanism described a very minute adjustment of the roll10 may be effected without the necessity of detaching any of the parts.The roll is always operatively connected to the roller 14. The mechanismis veryl simple and durable in construction and can be readilymanipulated. The adjustable bearing is of course to be duplicated at theother side of the press.

Various changes can of course be made in the construction andarrangement of the parts without departing from the spirit orsacrificing any ot the advantages of the .invention as dened in theappended claims.

Vhat is claimed is:-

l. The combination with a supporting structure, of a bearing blockmounted for rotary adjustment therein, said block having` an eccentricbore therein, a revoluble element bearing upon said block, a gudgeonmounted for rotation Within the eccentric bore, and means fortransmitting motion from the revoluble element to the gudgeonirrespective of the adjustment of the block within the structure. p

2. The combination with a support engaging structure having a ring-likeportion, of ar bearing block mounted for rotary adjustment Within saidring-like portion and having an eccentric bore, means for rotating saidblock, a gudgeon journaled Within the bore, a revoluble element mountedupon the block, a plate secured to and revoluble with the gudgeon, and aconnecting device eX- tending from the revoluble element and movablyengaged by the plate, said revoluble device and the plate and gudgeonbeing revoluble together irrespective of the adjustment of the bearingblock.

In testimony that I claim the foregoing as my own7 I have hereto atiixedmy signature in the presence of two Witnesses.

HARRY O.' ATWrOOD.

Vitnesses GEO. W. CoLsHnr., ELI T. SPEAKMAN.

